We’re all being asked to stay indoors in quarantine to avoid getting COVID-19 infection. But the air quality in our homes or offices may be 5x worse because of other factors that can harm us. It’s a good thing there is actually a way to “see” viruses and pollutants hovering around so we can put up our best defense.

If you’re looking for a means to earn income these pandemic days, try testing more than half the population of the world (almost 4 billion) – that’s how big your potential market is if you create at least one online course today. And that’s just people who are currently using social media, according to the Digital 2020 July Global Statshot report of We Are Social and Hootsuite. That’s almost the same number of Internet users around the world today, which stands at 4.57 billion, and growing.